Meeting video small or slide show small

I was just in a meeting with a video and a slide show, and I selected them to be separate.

I sized the second window to be as large as possible using the "SouthEast" arrow on the window, but it was very limited in size (less than half the width and less than half the height of my monitor).

I could swap the windows, and then the video was large but again the secondary window was small.

Is there anything that can be done to make the secondary window larger?  For example, if the maximum size of the secondary window is limited by the resolution of the camera, we could connect a camera with higher resolution.

But if the size of the secondary window is "hard-coded", then we won't have any option.

Thanks for taking time to look into this.